Answer:
1
Explanation:
f(x) = x^2 - 2x - 4
when x = -1, f(-1) = (-1)^2 - 2(-1) - 4 = 1 + 2 - 4 = -1
when x = 4, f(4) = (4)^2 - 2(4) - 4 = 16 - 8 - 4 = 4
The average rate of change from x = -1 to x = 4:
f(4) - f(-1) 4 - (-1) 5
---------------- = -----------------= -------- = 1
x4 - x1 4 - (-1) 5
Answer
The average rate of change = 1